Blog
Save
Email
Print
ShareAbsolute zero is the lowest possible temperature where nothing could be colder and no heat energy remains in a substance.
See also:
Absolute zero is the point at which the fundamental particles of nature have minimal vibrational motion, retaining only quantum mechanical, zero-point energy-induced particle motion. By international agreement, absolute zero is defined as precisely; 0 K on the Kelvin scale, which is a thermodynamic (absolute) temperature scale; and –273.15 degrees Celsius on the Celsius scale.
Absolute zero is also precisely equivalent to; 0 degrees R on the Rankine scale (also a thermodynamic temperature scale); and –459.67 degrees F on the Fahrenheit scale. While scientists can not fully achieve a state of “zero” heat energy in a substance, they have made great advancements in achieving temperatures ever closer to absolute zero (where matter exhibits odd quantum effects).
In 1994, the NIST achieved a record cold temperature of 700 nK (billionths of a kelvin).
In 2003, researchers at MIT eclipsed this with a new record of 450 pK (0.45 nK).
For more information about the topic Absolute zero, read the full article at Wikipedia.org, or see the following related articles:
Kelvin — The kelvin (symbol: K) is the SI unit of temperature. It is defined as the fraction 1/273.16 of the thermodynamic (absolute) temperature of the ... > read more
Temperature — Temperature is the physical property of a system which underlies the common notions of "hot" and "cold"; the material with the higher temperature is ... > read more
Laws of thermodynamics — The laws of thermodynamics, in principle, describe the specifics for the transport of heat and work in thermodynamic processes. Since their ... > read more
Thermodynamics — Thermodynamics is a branch of physics that studies the effects of changes in temperature, pressure, and volume on physical systems at the macroscopic ... > read more
Phase (matter) — A phase is a set of states of a macroscopic physical system that have relatively uniform chemical composition and physical properties (i.e. density, ... > read more
Entropy — In thermodynamics, entropy is an extensive state function that accounts for the effects of irreversibility in thermodynamic systems, particularly in ... > read more
Heat — In physics, heat is a form of energy associated with the motion of atoms, molecules and other particles which comprise matter; generally defined as ... > read more
Bose-Einstein condensate — A Bose–Einstein condensate is a phase of matter formed by bosons cooled to temperatures very near to absolute zero (0 kelvin or -273.15 degrees ... > read moreRecommend this page on Facebook, Twitter,
and Google +1:
Other bookmarking and sharing tools:
more 